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SELECT [table.]field1 [AS alias1]
也就是給欄位名([table.]field1) 取別名(alias1)
ex:
select title as 書名 from books
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SELECT [table.]field1 [AS alias1]
也就是給欄位名([table.]field1) 取別名(alias1)
ex:
select title as 書名 from books